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Finding the Fourth Proportional to 247,517.25, 341,574.72 and 134,340

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Solution

The fourth proportional to 247,517.25, 341,574.72 and 134,340 is: 185,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,517.25 : 341,574.72 = 134,340 : x
  2. Step 2: Convert to fraction form
    247,517.25/341,574.72 = 134,340/x
  3. Step 3: Cross multiply
    247,517.25x = 341,574.72 × 134,340
  4. Step 4: Simplify right side
    247,517.25x = 45,887,147,884.80
  5. Step 5: Solve for x
    x = 45,887,147,884.80/247,517.25
  6. Step 6: Final answer
    x = 185,389.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.